Some dogs are less allergenic than others. If you did decide to get a dog, you could quite likely find one that was compatible with your immune system. But, dogs require a great deal of effort and attention, and may not be a compatible pet with an irregular schedule-that's one of the reasons I didn't have one when I was living alone. It just wouldn't have worked.

Getting some dog-time might be good for you. You might find it satisfying, or at least find that it gives you more insight as to what kinds of dogs you are and aren't compatible with should you decide to adopt one in the future.